Driving support device

Abstract

A driving support device includes: an accelerator pedal operation detection unit configured to detect an accelerator pedal operation; an advancing direction detection unit configured to detect an advancing direction; a shift range detection unit configured to detect a shift range; a switchback determination unit configured to determine that a switchback state is occurring, in which the advancing direction that has been detected is different from an advancing direction based on the shift range; and a driving force limitation unit configured to limit a driving force in accordance with the accelerator pedal operation, in which the driving force limitation unit limits the driving force in accordance with the accelerator pedal operation, and also sets a limit amount of the driving force while the switchback state is occurring to be smaller than a limit amount of the driving force while no switchback state is occurring.

What is claimed is: 
     
       1. A driving support device comprising:
 an accelerator opening degree sensor or an accelerator pedal sensor configured to detect an accelerator pedal operation of a vehicle; 
 a vehicle speed sensor configured to detect an advancing direction at present of the vehicle; 
 a shift position sensor configured to detect a shift range at present of the vehicle; and 
 an ECU is configured to determine that a switchback state is occurring, in which the advancing direction that has been detected is opposite to an advancing direction based on the shift range that has been detected; wherein 
 the ECU is configured to limit a driving force of the vehicle when an operation amount of the accelerator pedal operation that has been detected exceeds a predetermined threshold value, and 
 also configured to set a limit amount of the driving force while the switchback state is occurring to be smaller than a limit amount of the driving force while no switchback state is occurring. 
 
     
     
       2. The driving support device according to  claim 1 , wherein while the switchback state is occurring, the ECU minimizes the limit amount of the driving force. 
     
     
       3. The driving support device according to  claim 1 , wherein while the switchback state is occurring, the ECU prohibits limitation of the driving force, regardless of the accelerator pedal operation that has been detected. 
     
     
       4. The driving support device according to  claim 3 , wherein while the ECU prohibits the limitation of the driving force and no switchback state is occurring, the ECU cancels prohibition of the limitation the driving force, and limits the driving force. 
     
     
       5. The driving support device according to  claim 1 , further comprising a notification unit configured to notify a driver of the vehicle, when at least a predetermined accelerator pedal operation is detected.